Patients with PF consent to be enrolled in the Registry and may consent to be contacted by Registry personnel about opportunities for them to participate in research studies. Some of these studies (e.g., "Observing the Effects of Supplemental Oxygen on Patients with Pulmonary Fibrosis") will be conducted by Dr. Swigris and his research team—these studies will be considered Registry-affiliated. Registry participants are free to enroll in any study they wish—whether Registry-affiliated or conducted by investigators not affiliated with the Registry—i.e., non-Registry-affiliated studies. It is assumed the investigators conducting those studies will adhere to regulations governing the protection of human subjects in research. Consider a hypothetical example: an investigator in Michigan is conducting a study of the effects of oral honey on PF-related cough and would like Registry participants to consider enrollment. The investigator would petition the Registry and, if approved by the Registry Oversight Committee, Registry personnel would contact potentially eligible Registry participants to inform them of the study. The participants would then decide whether or not to contact the investigator in Michigan to be considered for enrollment. The investigatory in Michigan would be responsible for discussing the study with any potential subject, obtaining informed consent and conducting the study. All of these fall outside the purview of the Registry or its personnel.